188 



INDEX I. 



tnollusca of the west coast of North 

 America, ] 59. 



Cayley (A.) on the progress of theoretical 

 dynamics, — provisional report pre- 

 sented, 462 ; on the formation of a ca- 

 talogue of philosophical memoirs, 464. 



Chapman (Mr.) on the navigation and 

 conservancy of the river Mersey, 9. 



Cleat in coal, on the, 395. 



Cleavage of rocks distinct from stratifi- 

 cation, 370 ; continuous through large 

 ranges of country, 372 ; in continuous 

 parallel planes across bent and con- 

 torted strata, 373 ; symmetrically re- 

 lated to axes of movement of the strata, 

 374 ; relation of cleavage planes to the 

 incUnation of the strata, 375 ; varies 

 in the strata of unlike quality, 383 ; 

 accompanied by change of dimensions 

 in rocks, 386 ; secondary cleavage of 

 slate, 393 ; relation of, to joints, ib. ; 

 occurrence of structures analogous to, 

 near greenstone dykes, 394. 



Clyde, Frith of, dredging report, 1856,47. 



Coal, on the cleat in, 395. 



Crustacea dredged from the Frith of 

 Clyde, test of, 50. 



Denham (Captain) on the navigation and 

 conservancy of the river Mersey, 11, 

 21. 



Dredging report — Frith of Clyde, 1846, 



Dynamics, on the progress of theoretical, 

 — provisional report presented, 462. 



Echinoidea endocyclica, 398 ; exocyclica. 

 399 ; table of the, showing the sections 

 and families of the, ib. 



Echinodermata, list of, dredged from the 

 Frith of Clyde, 5 1 ; on the stratigra- 

 phical distribution of the oolitic, 396, 

 400. 



Eyton (T. C), dredging report — Frith of 

 Clyde, 1856, 47 ; abstract of first re- 

 port on the oyster-beds and oysters of 

 the British shores, 368. 



Fairbairn (William) on the tensile 

 strength of wrought iron at various 

 temperatures, 405. 



Fleming (Dr.) on the experiments con- 

 ducted at Stormontfield, near Perth, 

 for the artificial propagation of sal- 

 mon, 451. 



Frith of Clyde, dredging report, 1856, 

 47. 



Giles (Mr.) on the navigation and con- 

 servancy of the river Mersey, 10. 



Gilmore (Allan) on the measurement of 



ships for tonnage, 458. 

 Grant (R.) on the formation of a catalogue 



of philosophical memoirs, 464. 

 Greville (Dr.), dredging report — Frith of 



Clyde, 1854, 47- 



Henderson (Andrew), report on the efi^ects 

 produced on the channels of the Mer- 

 sey during the last fifty years, 44 ; on 

 the measurement of ships for tonnage, 

 458. 



Henslow (Professor) on typical forms of 

 minerals, plants, and animals for mu- 

 seums, 461. 



Induction, photochemical, 65. 



Iron, on the tensile strength of wrought, 

 at various temperatures, 405 ; on the 

 tensile strength of rivet, 415. 



Jardine (SirW., Bart. ) on the experiments 

 conducted at Stormontfield, near Perth, 

 for the artificial propagation of salmon, 

 451. 



Light, reduction of the chemical action 

 of, to an absolute measaure, 67. 



Liverpool, report of the Mersey Com- 

 mittee in, in September 1854, 1 ; rights 

 of the mayor, aldermen and burgesses 

 of, to the lordship of, 23. 



Logarithms, on the geometrical origin of, 

 68. 



Lord (Lieut. William) on the navigation 

 and conservancy of the river Mersey, 2, 

 19, 24,26. 



Lowe (E. J.), luiainous me'teors observed 

 by, in 1855-56, 56. 



MacAndrew (Robert), report on the ma- 

 rine testaceous moUusca of the north- 

 east Atlantic and neighbouring seas, 

 and the physical conditions affecting 

 their development, 101. 



Mallet (R.) on observations with the 

 seismometer — provisional report pre- 

 sented, 462. 



Mercantile steam transport economy, on, 

 423. 



Mersey Committee in Liverpool, in Sep- 

 tember 1854, report of the, 1. 



Mersey, on the changes in the sea chan- 

 nels of the, 26. 



Meteors, luminous, report on observa- 

 tions of, 53 ; observed by E. J. 

 Lowe, in 1855-56, 57, 61 ; seen 

 near Canterbury, 60 ; seen by Prof. 

 C. P.Smyth, ib, ; seen by Mrs. Smyth, 

 ib. 



